NovaleaA586534 NovaleaA586534
  • 26-10-2022
  • Mathematics
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(Combining Equations )What is the result of subtracting the second equation from the first ? -3x + 2y = 7-3x -2y = 4

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ZekielO782484 ZekielO782484
  • 26-10-2022

subtracting the second equation from the first can be done below

[tex]\begin{gathered} -3x+2y=7 \\ -3x-2y=4​ \\ \\ -3x-(-3x)=0 \\ 2y-(-2y)=4y \\ 7-4=3 \\ 4y=3 \\ y=\frac{3}{4} \\ \\ -3x+2(\frac{3}{4})=7 \\ -3x+\frac{6}{4}=7 \\ -3x=7-\frac{3}{2} \\ -3x=\frac{14-3}{2} \\ -3x=\frac{11}{2} \\ -6x=11 \\ x=-\frac{11}{6} \end{gathered}[/tex]

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